diff --git a/homeassistant/helpers/event.py b/homeassistant/helpers/event.py
index b42bf6c6913..00933ba77c6 100644
--- a/homeassistant/helpers/event.py
+++ b/homeassistant/helpers/event.py
@@ -1326,7 +1326,7 @@ def async_track_point_in_utc_time(
         hass.async_run_hass_job(job, utc_point_in_time)
 
     job = action if isinstance(action, HassJob) else HassJob(action)
-    delta = utc_point_in_time.timestamp() - time.time()
+    delta = expected_fire_timestamp - time.time()
     cancel_callback = hass.loop.call_later(delta, run_action, job)
 
     @callback